They're also not serious about it. Decentralization is a "disinformation specialist's" nightmare, because people might be able to say things to other people that couldn't be edited or deleted by third parties.

That being said, I'd be overjoyed if the Fediverse took off over this. There's just not a chance in hell, because it's a worst case scenario for the three-letter agencies and the administration that are pushing this outrage. Just the observation of how aggressive they've become over Musk's ownership, a guy who's completely in thrall to government insider cash, tells you that they wouldn't tolerate a competitive, mainstream Mastodon for a second.

This is just trashing the company as an indication that they can destroy the company. A company that Musk vastly overpaid for, so now is stuck with the obligation to make profitable. Making Twitter profitable was probably always impossible. An intense government push could easily destroy it. That's why he's explicitly aligning with Republicans, who can't attack Musk without alienating their base.